[gtk+] win32: Ignore client requested window move/size during SIZEMOVE

[Alexander Larsson <alexl src gnome org>]

commit 36a28d616ff62275781083d70ad89da1ebd63768
Author: Alexander Larsson <alexl redhat com>
Date:   Tue Oct 25 16:13:47 2011 +0200

    win32: Ignore client requested window move/size during SIZEMOVE
    
    This will just be fighting the user like in e.g.
    https://bugzilla.gnome.org/show_bug.cgi?id=64428

 gdk/win32/gdkevents-win32.c  |   13 +++++++++++--
 gdk/win32/gdkglobals-win32.c |    1 +
 gdk/win32/gdkprivate-win32.h |    2 ++
 gdk/win32/gdkwindow-win32.c  |    5 +++++
 4 files changed, 19 insertions(+), 2 deletions(-)
---
diff --git a/gdk/win32/gdkevents-win32.c b/gdk/win32/gdkevents-win32.c
index bc2f8a5..3777910 100644
--- a/gdk/win32/gdkevents-win32.c
+++ b/gdk/win32/gdkevents-win32.c
@@ -2660,13 +2660,19 @@ gdk_event_translate (MSG  *msg,
 
     case WM_ENTERSIZEMOVE:
     case WM_ENTERMENULOOP:
+      if (msg->message == WM_ENTERSIZEMOVE)
+	_modal_move_resize_window = msg->hwnd;
+
       _gdk_win32_begin_modal_call ();
       break;
 
     case WM_EXITSIZEMOVE:
     case WM_EXITMENULOOP:
       if (_modal_operation_in_progress)
-	_gdk_win32_end_modal_call ();
+	{
+	  _modal_move_resize_window = NULL;
+	  _gdk_win32_end_modal_call ();
+	}
       break;
 
     case WM_CAPTURECHANGED:
@@ -2674,7 +2680,10 @@ gdk_event_translate (MSG  *msg,
 	 select move/size in the menu and then click somewhere without
 	 moving/resizing. We work around this using WM_CAPTURECHANGED. */
       if (_modal_operation_in_progress)
-	_gdk_win32_end_modal_call ();
+	{
+	  _modal_move_resize_window = NULL;
+	  _gdk_win32_end_modal_call ();
+	}
       break;
 
     case WM_WINDOWPOSCHANGING:
diff --git a/gdk/win32/gdkglobals-win32.c b/gdk/win32/gdkglobals-win32.c
index f9b2c02..1a876d0 100644
--- a/gdk/win32/gdkglobals-win32.c
+++ b/gdk/win32/gdkglobals-win32.c
@@ -79,6 +79,7 @@ gint		  _gdk_input_ignore_wintab = FALSE;
 gint		  _gdk_max_colors = 0;
 
 gboolean	  _modal_operation_in_progress = FALSE;
+HWND              _modal_move_resize_window = NULL;
 gboolean	  _ignore_destroy_clipboard = FALSE;
 
 HGLOBAL           _delayed_rendering_data = NULL;
diff --git a/gdk/win32/gdkprivate-win32.h b/gdk/win32/gdkprivate-win32.h
index 0bfcd3f..9ecfc6e 100644
--- a/gdk/win32/gdkprivate-win32.h
+++ b/gdk/win32/gdkprivate-win32.h
@@ -343,6 +343,8 @@ extern gint		 _gdk_max_colors;
 /* TRUE while a modal sizing, moving, or dnd operation is in progress */
 extern gboolean		_modal_operation_in_progress;
 
+extern HWND		_modal_move_resize_window;
+
 /* TRUE when we are emptying the clipboard ourselves */
 extern gboolean		_ignore_destroy_clipboard;
 
diff --git a/gdk/win32/gdkwindow-win32.c b/gdk/win32/gdkwindow-win32.c
index 449a286..b08d74b 100644
--- a/gdk/win32/gdkwindow-win32.c
+++ b/gdk/win32/gdkwindow-win32.c
@@ -1201,6 +1201,11 @@ gdk_win32_window_move_resize (GdkWindow *window,
 			      gint       width,
 			      gint       height)
 {
+  /* We ignore changes to the window being moved or resized by the 
+     user, as we don't want to fight the user */
+  if (GDK_WINDOW_HWND (window) == _modal_move_resize_window)
+    return;
+
   if (with_move && (width < 0 && height < 0))
     {
       gdk_win32_window_move (window, x, y);